*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
/*清楚间距*/

.container{
    width: 1170px;
    margin: 0 auto;
}
/*块元素水平方向居中*/

.clearfix:after,
.clearfix:before{
    content: "";
    display: block;
    clear: both;
}

a{
    text-decoration: none;
    cursor: pointer;
}
/*清除A标签默认下划线，划过效果*/

li{
    list-style: none;
}
/*清除类表项符号*/

body{
    background-color: #f5f8fa;
}

/*导航栏样式 开始*/
nav{
    background-color: #3097d1;
}
nav img{
    width: 83px;
    height: 23px;
}
nav ul a{
    color: #f2e5e5;
}
nav ul a:hover{
    color:lemonchiffon;
}
nav .container,
nav ul{
    display: flex;
    flex-direction:row ;
}
nav .container{
    padding: 14px 0;
}
nav ul{
    padding-left: 30px;
}
nav ul .col-1 a{
    color:lemonchiffon;
}
nav ul .col-2{
    padding-left: 31px;
}
/*导航栏样式 结束*/


/*主体内容样式 开始*/
.main{
    margin-bottom: 100px;
}
.main .container{
    flex-direction: row;
    display: flex;
}
.main p{
    font-size: 13px;
    color: #413f48;
}
.main span{
    font-size: 12px;
    color: #a3aeb2;
}
/*左侧栏样式 开始*/
.left{
    margin-top: 30px;
    width: 25%;
}

.left .img-1{
    width: 275px;
    height: 145px;
    border-bottom:1px solid #d3e0e9 ;
}
.left .img-2{
    width: 94px;
    height: 94px;
    border-radius: 50%;
    position: absolute;
    top: 88px;
    left: 86px;
    border: 2px solid #f2f2f2;
}
.left .left-dave{
    position: relative;
    border: 1px solid #d3e0e9;
    border-radius: 4px;
}
.left .text{
    padding-top: 40px;
    text-align: center;
    padding-bottom: 30px;
}
.left .text .left-dave p{
    color: #565e5e;
}
.left .left-about{
    border: 1px solid #d3e0e9;
    border-radius: 4px;
    margin-top: 30px;
    padding: 17px 0 31px 15px;
    line-height:2;
}
.left .left-about a{
    color: #3097d1;
}
.left .left-about a:hover{
    color: orange;
}
.left .left-photos{
    border: 1px solid #d3e0e9;
    border-radius: 4px;
    margin-top: 22px;
    text-align: center;
}
.left .left-photos img{
    width: 117px;
    height: 118px;
    padding-top: 8px;
}
.left .left-photos .img1{
    padding-right: 8px;
}
.left .left-photos h3{
    text-align: left;
    padding-left: 15px;
    padding-top: 17px;
}
.left .left-photos{
    padding-bottom: 25px;
}
/*左侧栏样式 结束*/

/*中间栏样式 开始*/
.middle{
    width: 50%;
    border: 1px solid #d3e0e9;
    border-radius: 3px;
    margin: 30px 30px 0 30px;
}
.middle .middle-top .dave{
    padding-top: 28px;
    padding-bottom: 14px;
}
.middle .middle-top .dave h3{
    display: inline-block;
    padding-left: 21px;
}
.middle .middle-top .dave span{
    float: right;
    padding-right: 20px;
}
.middle .middle-top .p1{
    padding-left: 20px;
    padding-right: 16px;
}
.middle .middle-top .pics img{
    width: 267px;
    height: 213px;
}

.middle .middle-top .p2{
    padding: 0 23px 26px 19px;
}
.middle .middle-top .p3{
    padding: 0 26px 46px 19px;
}
.middle .middle-top .pics{
    padding: 4px;
}
.middle .middle-top .pics .col-6{
    float: left;
    padding-left: 5px;
    padding-right: 5px;
    margin-bottom: 5px;
}
.middle .middle-top .pics .row{
    margin-left: -5px;
    margin-right: -5px;
}
.middle .middle-top{
    border-bottom: 1px solid #d3e0e9;
}

.middle .middle-center .dave{
    padding: 27px 20px 11px 18px;
}
.middle .middle-center .dave h3{
    display: inline-block;
}
.middle .middle-center .dave span{
   float: right;

}
.middle .middle-center p{
    padding: 0 20px 34px 20px;
}
.middle .middle-center{
    border-bottom: 1px solid #d3e0e9;
}
/*中间栏样式 结束*/

/*底部栏样式 开始*/
.middle .middle-bottom .dave{
    padding: 27px 20px 14px 21px;
}
.middle .middle-bottom .dave h3{
    display: inline-block;
}
.middle .middle-bottom .dave span{
    float: right;
}
.middle .middle-bottom .p1{
    padding: 0 26px 45px 21px;
}
.middle .middle-bottom img{
    width: 542px;
    height: 525px;
    display: block;
    margin: auto;
}
.middle .middle-bottom .p2{
    padding: 40px 24px 45px 21px;
}
/*底部栏样式 结束*/


/*右侧栏样式 开始*/
.right{
    width: 25%;
    margin-top: 30px;
}
.right .right-1{
    padding: 15px 0;
    border: 1px solid #d3e0e9;
    border-radius: 3px;
}
.right .right-1 img{
    width: 245px;
    height: 230px;
    display: block;
    margin: auto;
}
.right .right-1 h3{
    padding-left: 15px;
    padding-bottom: 11px;
}
.right .right-1 p{
    padding: 14px 24px 14px 15px;
}
.right .right-1 a{
    font-size: 14px;
    color: #58a5d9;
    border: 1px solid #2a88bd;
    background-color: #fff;
    border-radius: 3px;
    padding: 9px 9px 7px 11px;
    margin-left: 15px;
    display: inline-block;
}
.right .right-1 a:hover{
    background-color: rgba(42, 136, 189, 0.44);
    border: 1px solid #fff;
    color: #fff;
}
.right .right-2{
    border: 1px solid #d3e0e9;
    border-radius: 3px;
    margin-top: 30px;
    padding: 17px 0 0 0;
}
.right .right-2 img{
    border-radius: 50%;
    width: 60px;
    height: 60px;
}
.right .right-2 .right-21-1,.right .right-2 .right-21-2{
    display: flex;
    flex-direction: row;
}
.right .right-2 .right-21{
    padding-left: 15px;
    padding-bottom: 26px;
}
.right .right-2 .right-21 h3{
    padding-bottom: 14px;
}
.right .right-2 .right-21 a{
    font-size: 14px;
    color: #518fbf;
    border: 1px solid #2a88bd;
    padding: 9px 9px 10px 26px;
    display: inline-block;
    border-radius: 3px;
    margin-top: 8px;
    position: relative;
}
.right .right-2 .right-21 a:hover{
    background-color: rgba(42, 136, 189, 0.44);
    border: 1px solid #fff;
    color: #fff;
}
.right .right-2 .right-21 .text{
    padding-left: 15px;
}
.right .right-2 .right-21-1 .text{
    padding-bottom: 20px;
}
.right .right-2 .tu{
    background: url("../images/xiaoren.png");
    position: absolute;
    top: 11px;
    left: 10px;
    width: 12px;
    height: 12px;
}
.right .right-2 .right-22{
    background-color: #f5f8fa;
    border-top: 1px solid #d3e0e9;

}
.right .right-2 .right-22 p{
    padding: 15px 23px 13px 16px;
}

/*右侧栏样式 结束*/
/*主体内容结构 开始*/


/*底部样式 开始*/
footer{
    border-top: 1px solid #cccccc;
    text-align: center;
}
footer a{
    color: #3097d1;
}
footer a:hover{
    color:orangered;
}
footer p{
    padding-top: 54px;
}
footer ul{
    display: flex;
    flex-direction:row ;
    justify-content:center;
    padding-top: 22px;
}
footer ul a{
    padding-right: 14px;
    padding-bottom: 60px;
}
/*底部样式 结束*/



/*媒体查询*/
@media (max-width: 600px) {
    .container,.main .container{
        width: 100%;
        display: block;
    }
    nav ul{
        width: 100%;
        display: flex;
        flex-wrap:wrap;
    }
    nav ul .col-2{
        padding-left: 15px;
    }
    nav .container{
        width: 100%;
    }
    .left{
        width: 100%;
    }
    .left .left-dave{
        text-align: center;
        padding-top: 20px;
    }
    .left .left-about{
        text-align: center;
    }
    .left .left-photos .img1{
        padding-right: 0;
    }
    .left .img-2{
        position: absolute;
        top: 110px;
        left: 50%;
        margin-left: -50px;
    }
    .middle{
        width: 100%;
        margin: 20px 0;
    }
    .middle .middle-top .pics .img-1{
        padding-right: 0;
    }
    .middle .middle-top .pics{
        text-align: center;
    }
    .middle .middle-bottom img{
        width: 100%;
    }
    .middle .middle-top .dave span,.middle .middle-center .dave span,.middle .middle-bottom .dave span{
        padding-left: 151px;
    }
    .middle .middle-top .pics img{
        width: 100%;
    }
    .right{
        text-align: center;
        margin-top: 0;
        width: 100%;
    }
    .right .right-2 .right-21-2 a{
        margin-left: 23px;
    }

}